Home / 1,345,143.28-1,856,204.71-756,530.86

Finding the Fourth Proportional to 1,345,143.28, 1,856,204.71 and 756,530.86

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Solution

The fourth proportional to 1,345,143.28, 1,856,204.71 and 756,530.86 is: 1,043,960.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,143.28 : 1,856,204.71 = 756,530.86 : x
  2. Step 2: Convert to fraction form
    1,345,143.28/1,856,204.71 = 756,530.86/x
  3. Step 3: Cross multiply
    1,345,143.28x = 1,856,204.71 × 756,530.86
  4. Step 4: Simplify right side
    1,345,143.28x = 1,404,276,147,761.47
  5. Step 5: Solve for x
    x = 1,404,276,147,761.47/1,345,143.28
  6. Step 6: Final answer
    x = 1,043,960.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.